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52157154740 = 22523113385119
BaseRepresentation
bin110000100100110011…
…110000010110110100
311222121220212222121212
4300210303300112310
51323304212422430
635543300500552
73524334333425
oct604463602664
9158556788555
1052157154740
1120135399369
12a1373aa758
134bc294c752
14274b01764c
151553e4bb95
hexc24cf05b4

52157154740 has 24 divisors (see below), whose sum is σ = 114292200960. Its totient is φ = 19955780768.

The previous prime is 52157154739. The next prime is 52157154743. The reversal of 52157154740 is 4745175125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52157154743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56692100 + ... + 56693019.

It is an arithmetic number, because the mean of its divisors is an integer number (4762175040).

Almost surely, 252157154740 is an apocalyptic number.

It is an amenable number.

52157154740 is an abundant number, since it is smaller than the sum of its proper divisors (62135046220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52157154740 is a wasteful number, since it uses less digits than its factorization.

52157154740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113385151 (or 113385149 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 41.

The spelling of 52157154740 in words is "fifty-two billion, one hundred fifty-seven million, one hundred fifty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 113385119 226770238 453540476 566925595 1133851190 2267702380 2607857737 5215715474 10431430948 13039288685 26078577370 52157154740